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120695 (1997 GU40)
Classification: Main-belt Asteroid          SPK-ID: 2120695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532129998988057 3.1072e-08  
a 2.185037018569755 7.9191e-09 au
q 1.85026094206474 6.5902e-08 au
i 3.120773114995273 3.0642e-06 deg
node 65.33119042530537 7.8005e-05 deg
peri 213.7019540785612 7.9199e-05 deg
M 68.86388397558639 1.3397e-05 deg
tp 2458974.829059747989
(2020-May-05.32905975)
4.3909e-05 TDB
period 1179.740871419997
3.23
6.4135e-06
1.756e-08
d
yr
n .305151757238592 1.6589e-09 deg/d
Q 2.51981309507477 9.1324e-09 au
  Orbit Determination Parameters
   # obs. used (total)      505  
   data-arc span      8598 days (23.54 yr)  
   first obs. used      1997-04-06  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57043  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:43  

Additional Information
 Earth MOID = .832955 au 
 Jupiter MOID = 2.59426 au 
 T_jup = 3.660 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.06   n/a E2021B55  

120695 (1997 GU40)          Discovered 1997-Apr-07 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1997 GU40 = 1997 HF12 = 2001 UN100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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